When Is It a Good Time for Both Colombo and Tokyo?
Clocks in Colombo are 3 hours 30 minutes behind
Colombo ↔ Tokyo
5h of business hours overlap daily (09:00–17:00)· Showing core hours (08:00–18:00)
Colombo
Tokyo
Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.
Quick time conversions: Colombo → Tokyo
Common reference points to help you plan across the time difference.
When it's 11:00 AM in Colombo, the time in Tokyo is 2:30 PM.
I'm in Colombo at 5:00 PM — what time is my colleague in Tokyo seeing?—8:30 PM
6:00 AMin Colombo→9:30 AMin Tokyo
If it's 2:00 PM in Colombo, it's 5:30 PM in Tokyo.
3:00 PMin Colombo→6:30 PMin Tokyo
If it's 6:00 PM where I am in Colombo, what does Tokyo show?—9:30 PM
9:00 AMin Colombo→12:30 PMin Tokyo
Frequently Asked Questions
What is the current offset between Colombo and Tokyo?
There is a 3 hours 30 minutes gap between Colombo and Tokyo. Colombo runs on Asia/Colombo and Tokyo on Asia/Tokyo.
When is it business hours in both Colombo and Tokyo at the same time?
You have 4.5 hours of mutual business hours. 09:00 Colombo / 12:00 Tokyo is typically the sweet spot.
Does daylight saving time affect the Colombo–Tokyo difference?
You can plan confidently — no DST shifts are due for either location this week, so the 3 hours 30 minutes gap won't change.
12:00 PM in Colombo is what time in Tokyo?
Colombo at noon — that's 3:30 PM in Tokyo at the exact same instant.
What tools help schedule across Colombo and Tokyo?
Use the interactive slider above. Drag it to any Colombo hour and all locations update instantly. Or type "3pm" / "15:00" in the search bar.
Which upcoming holidays affect Colombo–Tokyo coordination?
Marine Day falls on July 20 in Tokyo. If you have meetings around that date, confirm availability in advance.
What time zones do Colombo and Tokyo use?
Asia/Colombo covers Colombo; Asia/Tokyo covers Tokyo. This gives a 3 hours 30 minutes difference.
What time is a 9 AM Colombo meeting in Tokyo?
9:00 AM in Colombo = 12:30 PM in Tokyo. That's within standard working hours in Tokyo.
How are the UTC offsets of Colombo and Tokyo calculated?
Colombo and Tokyo sit in Asia/Colombo and Asia/Tokyo respectively. The arithmetic difference between their UTC offsets equals 3 hours 30 minutes.